// Event Handlers
/// <summary> Fires when an object is picked up from the Sense Glove. Disconnect it from this SnapZone. </summary>
/// <param name="source"></param>
/// <param name="args"></param>
private void Grabable_InteractionBegun(object source, SG_InteractArgs args)
{
SG_Grabable grabable = (SG_Grabable)source;
grabable.InteractionBegun -= Grabable_InteractionBegun; //unsibscribe regardless.
this.RemoveObject(grabable);
}
/// <summary> Add a target object. </summary>
/// <param name="obj"></param>
public void AddTarget(SG_Grabable obj)
{
if (obj != null)
{
this.objectsToGet.Add(obj);
}
}
/// <summary> Fires when one of my ObjectsToGet is released. </summary>
/// <remarks> Should only be subscribed to when </remarks>
/// <param name="source"></param>
/// <param name="args"></param>
private void Grabable_InteractionEnded(object source, SG_InteractArgs args)
{
SG_Grabable grabable = (SG_Grabable)source;
grabable.InteractionEnded -= Grabable_InteractionEnded; //unsubscribe from the method.
this.AttachObject(grabable);
}
/// <summary> Create a new instance of SnapProps, based on a singele Grabable's properties. </summary>
/// <param name="grabable"></param>
public SnapProps(SG_Grabable grabable)
{
this.wasInteractable = grabable.CanInteract();
this.wasKinematic = grabable.WasKinematic;
this.usedGravity = grabable.UsedGravity;
this.oldParent = grabable.OriginalParent;
this.myJoint = null;
}
/// <summary> Check if this SG_HapticGlove is one of the "goal" objects; </summary>
/// <param name="obj"></param>
/// <returns></returns>
public bool IsTarget(SG_Grabable obj)
{
if (this.objectsToGet.Count > 0)
{
return(SG_DropZone.ListIndex(obj, this.objectsToGet) > -1);
}
return(true); //we can accept any kind of Object.
}
/// <summary> Echeck if an exiting object belongs to one of the object we have. </summary>
/// <param name="obj"></param>
protected virtual void CheckObjectExit(GameObject obj)
{
SG_Grabable grabableScript = obj.GetComponent <SG_Grabable>();
if (grabableScript != null)
{
this.RemoveObject(grabableScript); //RemoveObject(Grabable) will check for indices etc.
}
}
/// <summary> Calls the ObjectRemoved event </summary>
/// <param name="removedObject"></param>
protected virtual void CallObjectRemoved(SG_Grabable removedObject)
{
//Debug.Log(this.name + ": " + removedObject.name + " Removed!");
if (this.ObjectRemoved != null)
{
this.ObjectRemoved(this, new DropZoneArgs(removedObject));
}
this.OnObjectRemoved.Invoke();
}
/// <summary> Check if a newly incoming object belongs to our targets. </summary>
/// <param name="obj"></param>
protected virtual void CheckObjectEnter(GameObject obj)
{
SG_Grabable grabableScript = obj.GetComponent <SG_Grabable>();
if (grabableScript != null && this.IsTarget(grabableScript) && !this.IsDetected(grabableScript))
{
this.AddObject(grabableScript);
}
}
/// <summary> Calls the ObjectDetected event </summary>
/// <param name="detectedObject"></param>
protected virtual void CallObjectDetect(SG_Grabable detectedObject)
{
//Debug.Log(this.name + ": " + detectedObject.name + " Detected!");
if (this.ObjectDetected != null)
{
this.ObjectDetected(this, new DropZoneArgs(detectedObject));
}
this.OnObjectDetected.Invoke();
}
/// <summary> Removes a specific object from this SenseGlove_DropZone </summary>
/// <param name="grabable"></param>
public virtual void RemoveObject(SG_Grabable grabable)
{
int objIndex = SG_DropZone.ListIndex(grabable, this.objectsInside);
if (objIndex > -1)
{
this.RemoveObject(objIndex);
}
}
// Class Methods
/// <summary> Returns true if this particular object has been detected and snapped within the SnapZone. </summary>
/// <param name="grabable"></param>
/// <returns></returns>
public bool IsSnapped(SG_Grabable grabable)
{
int index = ListIndex(grabable, this.objectsInside);
if (index > -1)
{
return(this.snapProperties[index].isSnapped);
}
return(false);
}
/// <summary> Adds an object to this SenseGlove_DropZone. Does not fire the eventTime. </summary>
/// <param name="grabable"></param>
public virtual void AddObject(SG_Grabable grabable)
{
this.objectsInside.Add(grabable);
this.dropProperties.Add(new DropProps());
if (this.detectionTime == 0 && (!grabable.IsInteracting() || this.detectHeldObjects))
{
this.dropProperties[this.dropProperties.Count - 1].detected = true; //mark that we have detected it!
this.CallObjectDetect(grabable);
}
}
/// <summary> Fires when an object is reset. Disconnect it from this SnapZone.</summary>
/// <param name="source"></param>
/// <param name="args"></param>
private void Grabable_ObjectReset(object source, System.EventArgs args)
{
Debug.Log("An object was reset!");
SG_Grabable grabable = (SG_Grabable)source;
int index = ListIndex(grabable, this.objectsInside);
if (index > -1)
{
this.snapProperties[index].BreakJoint();
}
this.RemoveObject(grabable);
}
// Detection Logic
#region Detection
/// <summary> Retrieve the index of a Grabable within a list of Grabables. </summary>
/// <param name="obj"></param>
/// <param name="grabables"></param>
/// <returns> Returns -1 if obj does not exist in grabables. </returns>
public static int ListIndex(SG_Grabable obj, List <SG_Grabable> grabables)
{
if (obj != null)
{
for (int i = 0; i < grabables.Count; i++)
{
if (GameObject.ReferenceEquals(obj.pickupReference.gameObject, grabables[i].pickupReference.gameObject))
{
return(i);
}
}
}
return(-1);
}
/// <summary> Restore properties back to their original state(s). </summary>
/// <param name="grabable"></param>
public void RestoreProperties(SG_Grabable grabable)
{
if (!grabable.IsInteracting())
{
grabable.SetInteractable(this.wasInteractable);
grabable.pickupReference.transform.parent = this.oldParent;
if (grabable.physicsBody != null)
{
grabable.physicsBody.useGravity = this.usedGravity;
grabable.physicsBody.isKinematic = this.wasKinematic;
}
}
this.BreakJoint();
}
/// <summary> Create a Physics Joint between a grabable and a snapZone. </summary>
/// <param name="grabable"></param>
/// <param name="snapZoneBody"></param>
/// <param name="breakForce"></param>
public void CreateJoint(SG_Grabable grabable, Rigidbody snapZoneBody, float breakForce)
{
if (this.myJoint == null)
{
if (grabable.physicsBody != null)
{
this.myJoint = grabable.physicsBody.gameObject.AddComponent <FixedJoint>();
this.myJoint.connectedBody = snapZoneBody;
this.myJoint.enableCollision = false;
this.myJoint.breakForce = breakForce;
}
}
else
{
SG_Debugger.LogError("Multiple Physics connections to my Properties. Wrong index!");
}
}
/// <summary> Snaps an object to this Zone's snapPoint, based on the Grabable's grabType. </summary>
/// <param name="grabable"></param>
protected void AttachObject(SG_Grabable grabable)
{
grabable.SnapMeTo(this.snapPoint, true);
grabable.InteractionBegun += Grabable_InteractionBegun;
grabable.ObjectReset += Grabable_ObjectReset;
int index = ListIndex(grabable, this.objectsInside);
if (this.snapMethod == SnapMethod.FixedJoint ||
(this.snapMethod == SnapMethod.ObjectDependent && grabable.pickupMethod == GrabType.FixedJoint))
{
if (grabable.physicsBody != null)
{
grabable.physicsBody.useGravity = true;
if (index > -1)
{
this.snapProperties[index].CreateJoint(grabable, this.physicsBody, SG_Grabable.defaultBreakForce);
this.snapProperties[index].isSnapped = true;
}
}
else
{
SG_Debugger.LogWarning(grabable.name + " does not have a RigidBody to attach to " + this.name + " via PhysicsJoint.");
}
}
else //any other way we snap it using the parent method.
{
grabable.pickupReference.parent = this.snapPoint;
if (grabable.physicsBody != null)
{
grabable.physicsBody.useGravity = false;
grabable.physicsBody.isKinematic = true;
}
if (index > -1)
{
this.snapProperties[index].isSnapped = true;
}
}
}
/// <summary> Called when an Object is detected and its event is called. End interation if needed, then snap it </summary>
/// <param name="detectedObject"></param>
protected override void CallObjectDetect(SG_Grabable detectedObject)
{
if (this.disablesInteraction)
{
detectedObject.SetInteractable(false);
}
if (this.takesFromHand)
{
detectedObject.EndInteraction();
}
if (!detectedObject.IsInteracting())
{
this.AttachObject(detectedObject);
}
else //we still are interacting, meaning we did not disable nor take from the hand.
{
detectedObject.InteractionEnded += Grabable_InteractionEnded; //not subscribed to untill this object is released.
}
base.CallObjectDetect(detectedObject);
}
/// <summary> Check if this Object has already been detected. </summary>
/// <param name="obj"></param>
/// <returns></returns>
public bool IsDetected(SG_Grabable obj)
{
return(SG_DropZone.ListIndex(obj, this.objectsInside) > -1);
}
/// <summary> Release a specific object from the zone. </summary>
/// <param name="grabable"></param>
public void ReleaseObject(SG_Grabable grabable)
{
this.ReleaseObject(ListIndex(grabable, this.objectsInside));
}
/// <summary> Create a new instance of the DropZoneArgs. </summary>
/// <param name="obj"></param>
public DropZoneArgs(SG_Grabable obj)
{
this.grabable = obj;
}
/// <summary> Fires when an object first enters the zone. Record its snap-properties. </summary>
/// <param name="grabable"></param>
public override void AddObject(SG_Grabable grabable)
{
this.snapProperties.Add(new SnapProps(grabable)); //empty
base.AddObject(grabable); //if time==0, then CallObjectDetect is also coaaled.
}
